First, I've searched this and come up with nothing. Kinda leads me to believe the timing is computer controlled. The Haynes manual is useless too.
95 Intrepid 3.3L (not flex fuel), 215k miles, well maintained and in good condition.How can I adjust the timing on this car?
The reason I ask is I seem to have picked up a little detonation in the last 7-10k miles. It'll knock when I load the engine on a steep hil in 3rd/4th gear. There's no problem in 1st/2nd even if I stab the gas from a stop.
The wires, Champion plugs (with the corrct gap), distributor cap and rotor have all been replaced with new Mopar units in the last 10-15k miles. Oil is changed with Valvoline 10w30 every 3-4k miles. The car is well maintained.
Should I try a colder plug? Cooler thermostat? The outside temp doesn't seem to matter. I've tried higher octane gas, even though it's expensive it doesn't seem to matter much. Can I retard the timing a bit?
Suggestions?